Table 2.
Reliability of scales across the three waves.
| Scale | Number of Items | Wave | Cronbach’s α | Mean Inter-Item Correlation |
|---|---|---|---|---|
| Delinquency | 12 | Wave 1 | 0.81 | 0.27 |
| Wave 2 | 0.84 | 0.33 | ||
| Wave 3 | 0.79 | 0.25 | ||
| Father–Child Subsystem Quality Scale | 17 | |||
| Paternal behavioral control | 7 | Wave 1 | 0.89 | 0.54 |
| Wave 2 | 0.89 | 0.54 | ||
| Wave 3 | 0.89 | 0.53 | ||
| Paternal psychological control | 4 | Wave 1 | 0.80 | 0.50 |
| Wave 2 | 0.83 | 0.54 | ||
| Wave 3 | 0.86 | 0.61 | ||
| Father-child relational quality | 6 | Wave 1 | 0.90 | 0.60 |
| Wave 2 | 0.91 | 0.62 | ||
| Wave 3 | 0.90 | 0.62 | ||
| Mother–Child Subsystem Quality Scale | 17 | |||
| Maternal behavioral control | 7 | Wave 1 | 0.90 | 0.55 |
| Wave 2 | 0.89 | 0.54 | ||
| Wave 3 | 0.89 | 0.54 | ||
| Maternal psychological control | 4 | Wave 1 | 0.85 | 0.59 |
| Wave 2 | 0.88 | 0.64 | ||
| Wave 3 | 0.89 | 0.67 | ||
| Mother-child relational quality | 6 | Wave 1 | 0.91 | 0.63 |
| Wave 2 | 0.91 | 0.64 | ||
| Wave 3 | 0.90 | 0.62 |